Carbureter-adjusting means.



E. J. GOODYEAR. CARBURETER ADJUSTING lVI-EANS.

APPLICATION FILED JULY 8. I915- Patented Sept. 12, 1916.

INVENTOR kimw EDWARD J. GOODYEAR, 0F WILKINSIBUBG, PENNSYLVANIA.

' cannunnrnie-amusrme Means.

Specificati oers Patent. Patented Sept. 12, ll'glllfi.

. Application filed July 8, 1915. Serial No. 33,633.

The priming is usually accomplished by temporarily moving the gasolene inlet valve of the carburetor from set position, thereby,

admitting a larger-amount of gasolene to the carbureter and correspondingly enriching the charges passing to the-inlet manifold and to the cylinders. Heretofore no adequate means has been provided for controlling the valve adjustment, 2'. 6., for accurately indicating the normal or set position of the valve after it has been returned from priming position, and this has fre-' quently resulted in such uncontrolled manipulation of the valve as to seriously impair the efiiciency of the carbureter, this being particularly true of inexperienced operators who are not fully conversant with the function of the priming mechanism nor avith the extent of movement necessary to produce the best priming results nor the tilt movement required to return the valve to set position.

The primary object of the present invention is to provide improved and efficient means for aflording the gasolene inlet valve limited step-bystep movement sufficient for the priming operation, and with means for stopping its return movement to normal or set position, the movement thus provided serving-to hold the valve at any step and affording suflicient resistance to movement in either direction to prevent unconscious or involuntary adjustment from any position at which the valve has been set.

A further object is to provide for operating the carbureter air inlet valve simultaneously with. the priming movement of the gasolene inlet valve, whereby .when the latter is opened for priming the air valve is closed, and vice versa, the means for accomplishing these movements preferably. extending to within convenient reach of the operato'rs position in the automobile.

In the accompanying drawings, Figure l nection.

upper side notched or serrated at 16.

is a view partly'in side elevation and partly in vertical section of the forward. portion of a Ford car showing the invention applied to the carbureter thereof. Fig. 2 is an elevation of the carbureter and operatingattachment, the parts being in full lines in position for priming the engine. Fig. 3 is a top plan of the mechanism shown in Fig.

2 but with the parts returned to normal or set position.

Referriifi to the drawings, 2 designates carbureter of the Holley type which is used extensively in Ford cars, the same being connected in the usual manner to the intake manifold 3 of the engine cylinders 4. Gasolene is supplied to the bowl-like lower portion 5 of the carbureter through inlet 6,. and the passage of the gasolene upwardly into the carburetor is controlled by needle valve 7 having its stem 8 extending through and above the carbureter body and provided with head -9. Valve 7 is normally set to pass gasolene of sufficient amount for the normal operation of the motor. For priming the latterv to facilitate starting the inflow of 'gasolene is increased by opening the valve still fur ther, thereby-providing an abnormallyrich fuel charge for the engine. The valve may be thus conveniently operated by means of arod 10 which is forked at 10 at its lower end to enter apertures in the valve head 9 thereby providing a loose joint-like con- ][n adapting theinvention to a Ford car as here illustrated, rod 10 extends upwardly and backwardly through. the instrument board 11 to within convenient reach-of the operators position in the car, the upper extremity of the rod being provided with handle 12.

- A lateral dog or arm 13, secured to valve head 9 by strap 14:,extends outwardly over the curved rack .15, the latter having its The dog has a springing movement over the rack, advanc ng thereover step-by-step and being retained at any step at which it is desired to hold the valve. A stop 17 projects from the rack which is engaged by dog 13 when the valve has been returned to normal position, and by this means the operator may know affirmatively that the valvehas been restored to'such position. following the priming operation. Also, in moving forwardly from the stop, the springing of the dog intothe successive notches of the rack will indicate to the operator the extent of forward movement, and he will soon become accustomed to moving the dog one, two, or three or more notches to obtain the best results for priming. The construction provides suflicient flexibility or elasticity to permit the dog to move from one notch to another but not, however, without enough efiort on the part of the operator to render the movement involuntary.

As the priming charge may be enriched by decreasing the air supply of the carbureter as well as by increasing the flow of gasolene, provision is had herein for closing the carbureter air inlet valve simultaneously with opening the gasolene valve. In the carbureter here shownv valve 18 of the carbureter air inlet 2 is secured to rotating stem 19, an arm 20 on the stem engaging stop 21 for limiting the opening movement under the impetus of spring 22. In order to close the valve 18 simultaneously with opening valve 7, arm 20 is connected by link 23 with the extremity of dog 13 whereby when the gasolene valve is advanced from set position, as in Fig. 2, the link connection operates to close valve 18. Upon returning the gasolene valve to normal position the link 23, or spring 22, or both the link and spring, serve to return the air valve to normal open position. Thus the ratchet mechanism performs the two-fold'function of providingstep-by-step movement for the gasolene valve and the -requisite movement for the air valve, whereby said parts are operated in unison. If it is desired to effect the priming operation without operating the air valve the connecting link may be readily removed. With the ratchet mechanism mounted immediately on the valve, the latter is securely held, and is in no way affected by the slight looseness resulting from the jointed connection between operating rod 10 and the valve.

WVhile the improved mechanism is here,

illustrated in connection with a Ford car and with a type of carbureter largely used on that car, it will be understood that the invention is not limited to such uses.

I claim:

1. In primin means, the combination of a carbureter, air and gasolene inlet valves therefor with the gasolene valve open whenever the air valve is open, and a connection between the valves for causing them to move in unison and oppositely to each other,

whereby during any movement of either valve toward closed position the area of the passage through the other valve is simul taneously increased, and vice-versa.

2. In priming means, the combination of a carbureter, air and gasolene inlet valves therefor with the gasolene valve open whenever the air valve is open, a connection between the valves for causing them to move in unison and oppositely to each other, whereby during any movement of either valve toward closed position the area of the passage through the other valve is simultaneously increased, and vice-versa, and means for causing said simultaneous movements to be accomplished step by step.

3. In an automobile, the combination of a carbureter, air and gasolene inlet valves thereforwith the gasolene valve open whenever the air valve is open, a connection between the valves for causing them to move in unison and oppositely to each other, whereby during any movement of either valve toward closed position the area of the passage through the other'valve is simultaneously increased, and vice-versa, means for causing said simultaneous movements to be accomplished step by step, and an operating device for the valves extending to within reach of the operators position in the automobile.

4. In an automobile, the combination of a carbureter, a rotatable gasolene inlet valve therefor, an air inlet valve, the gasolene valve being open whenever the air valve is open, a connection between said valves for causing them to move in unison and oppositely to each other, whereby during any movement of either valve toward closed position the area of the passage through the other valve is simultaneously increased, and vice-versa, an arm projecting from the rotatable gasolene valve, a notched rack over which the arm moves for affording the simultaneously operating valves step by step movement, and an operating device for the "alves extending to within reach of the operators position in the automobile.

In testimony whereof, I ailix my signature in presence of two witnesses.

EDWARD J. GOODYEAR.

Witnesses:

EMMA K. GOODYEAR, PHILIP EICHENLAUB. 

